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src/hotspot/share/gc/shared/cardTableBarrierSet.inline.hpp

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  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP
  26 #define SHARE_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP
  27 
  28 #include "gc/shared/cardTableBarrierSet.hpp"
  29 #include "gc/shared/cardTable.hpp"
  30 #include "runtime/orderAccess.hpp"
  31 
  32 template <DecoratorSet decorators, typename T>
  33 inline void CardTableBarrierSet::write_ref_field_post(T* field, oop newVal) {
  34   volatile CardValue* byte = _card_table->byte_for(field);
  35   if (_card_table->scanned_concurrently()) {
  36     // Perform a releasing store if the card table is scanned concurrently
  37     OrderAccess::release_store(byte, CardTable::dirty_card_val());
  38   } else {
  39     *byte = CardTable::dirty_card_val();
  40   }
  41 }
  42 
  43 #endif // SHARE_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP


  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP
  26 #define SHARE_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP
  27 
  28 #include "gc/shared/cardTableBarrierSet.hpp"
  29 #include "gc/shared/cardTable.hpp"
  30 #include "runtime/atomic.hpp"
  31 
  32 template <DecoratorSet decorators, typename T>
  33 inline void CardTableBarrierSet::write_ref_field_post(T* field, oop newVal) {
  34   volatile CardValue* byte = _card_table->byte_for(field);
  35   if (_card_table->scanned_concurrently()) {
  36     // Perform a releasing store if the card table is scanned concurrently
  37     Atomic::release_store(byte, CardTable::dirty_card_val());
  38   } else {
  39     *byte = CardTable::dirty_card_val();
  40   }
  41 }
  42 
  43 #endif // SHARE_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP
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